diff options
Diffstat (limited to 'drivers/staging/android/timed_output.c')
-rw-r--r-- | drivers/staging/android/timed_output.c | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c deleted file mode 100644 index 62e79180421b..000000000000 --- a/drivers/staging/android/timed_output.c +++ /dev/null @@ -1,121 +0,0 @@ -/* drivers/misc/timed_output.c - * - * Copyright (C) 2009 Google, Inc. - * Author: Mike Lockwood <lockwood@android.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/device.h> -#include <linux/fs.h> -#include <linux/err.h> - -#include "timed_output.h" - -static struct class *timed_output_class; -static atomic_t device_count; - -static ssize_t enable_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct timed_output_dev *tdev = dev_get_drvdata(dev); - int remaining = tdev->get_time(tdev); - - return sprintf(buf, "%d\n", remaining); -} - -static ssize_t enable_store( - struct device *dev, struct device_attribute *attr, - const char *buf, size_t size) -{ - struct timed_output_dev *tdev = dev_get_drvdata(dev); - int value; - - sscanf(buf, "%d", &value); - tdev->enable(tdev, value); - - return size; -} - -static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, enable_show, enable_store); - -static int create_timed_output_class(void) -{ - if (!timed_output_class) { - timed_output_class = class_create(THIS_MODULE, "timed_output"); - if (IS_ERR(timed_output_class)) - return PTR_ERR(timed_output_class); - atomic_set(&device_count, 0); - } - - return 0; -} - -int timed_output_dev_register(struct timed_output_dev *tdev) -{ - int ret; - - if (!tdev || !tdev->name || !tdev->enable || !tdev->get_time) - return -EINVAL; - - ret = create_timed_output_class(); - if (ret < 0) - return ret; - - tdev->index = atomic_inc_return(&device_count); - tdev->dev = device_create(timed_output_class, NULL, - MKDEV(0, tdev->index), NULL, tdev->name); - if (IS_ERR(tdev->dev)) - return PTR_ERR(tdev->dev); - - ret = device_create_file(tdev->dev, &dev_attr_enable); - if (ret < 0) - goto err_create_file; - - dev_set_drvdata(tdev->dev, tdev); - tdev->state = 0; - return 0; - -err_create_file: - device_destroy(timed_output_class, MKDEV(0, tdev->index)); - printk(KERN_ERR "timed_output: Failed to register driver %s\n", - tdev->name); - - return ret; -} -EXPORT_SYMBOL_GPL(timed_output_dev_register); - -void timed_output_dev_unregister(struct timed_output_dev *tdev) -{ - device_remove_file(tdev->dev, &dev_attr_enable); - device_destroy(timed_output_class, MKDEV(0, tdev->index)); - dev_set_drvdata(tdev->dev, NULL); -} -EXPORT_SYMBOL_GPL(timed_output_dev_unregister); - -static int __init timed_output_init(void) -{ - return create_timed_output_class(); -} - -static void __exit timed_output_exit(void) -{ - class_destroy(timed_output_class); -} - -module_init(timed_output_init); -module_exit(timed_output_exit); - -MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>"); -MODULE_DESCRIPTION("timed output class driver"); -MODULE_LICENSE("GPL"); |